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Participate in expert physics discussion. Discussion on the nature and properties of matter and energy. This area is for topics that don't fit the other categories. Mainstream physics only.
High School Dying from rapid depressurization- possible?
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High School Why everything is shaped like a circle?
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Undergrad Combining two decibel values vs dissimilar values
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11
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Where Can I Download Free Science Books?
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Graduate Paradox which questions time travel to the future
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Why does Physics attract crackpots?
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Can Teleportation Solve Our Environmental Problems?
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High School Antimatter Bomb: Real or Fiction?
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6
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High School Explain the 90 degree rule in Billiards
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10
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Undergrad Can Anything Float in a Superfluid?
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Graduate How was transparent aluminum created using high power X-ray sources?
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High School What exactly is a wave? What is it made out of?
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High School Plumbob creating designs in sand?
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Graduate Anomalies in the Asymmetrical Capacitors for Propulsion Tests
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2
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Time Travelling-Very Intereting Conversation
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Graduate Wave Propagation in Discreate Mediums - Help Needed
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High School Strange Radio Reception from TV Speakers: Possible Causes and Solutions
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  • Poll Poll
StackOverflow equivalent for physics?
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3
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Undergrad Sonar & Wave Qs: High-Freq Signals, Resolution & Feasibility
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High School Can the other two cameras provide a better pictuer?
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Undergrad Will Two Identical Spherical Cavities in Free Space Attract or Repel Each Other?
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Help prove something mathematically
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High School Mystery Spot illusion explanation
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Top physicists of all time with respect to h-index
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7
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High School Does the heart pumping and movement of blood affect body weight?
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9
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Undergrad History of Physics: Newton or Later Development?
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7
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Graduate Resonant Frequencies of Coaxial Cylinders
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3
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Undergrad What Are the Key Principles Behind the Design of the Bourdon Gauge?
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What is the Brilouine Zone and where can I learn more about it?
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High School Why are there so many different symbols for scientific equations?
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Undergrad Can a nuke crush a volcano's slope?
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10
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High School What Are the Four Fundamental Forces of Nature?
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1
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Physics Research Report: Ugh, No One Would Care Anyway
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3
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Undergrad Why is the concept of amount of substance as a quantity confusing?
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5
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Undergrad A: "Transforming Coal into Diamond: How Much Does One Pound of Gold Compress?"
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Make Explosive: Best Cheap Recipe for Power
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  • Poll Poll
High School Energy Efficiency: Email vs Letter
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4K
Pictures show soap bubble bursting
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Graduate Unscientific friends making arguments
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19
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Graduate I'm looking for a solid concise way to
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14
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Undergrad Eliminating noise from Excel Data
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14
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Undergrad Calculating Video Recording Capability of 4500 ft Object w/ Camcorder
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High School Explaining the Physics Principle of Vortex Coolers
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TEW: Lewis Little's Theory of Elementary Waves
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Undergrad Optical-SETI Anomaly: Australian Astronomers Detect Unusual Signal
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4K
Science is great E=mc^(2a+5a-5a+3-2+5-4-2a-2)
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Undergrad Flags Flutter: Aerodynamics Explained
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Graduate Air vibrating in a cylindrical cavity
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High School What Is the General Equation of a Parabola and Its Derivation?
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Physics Forums ratings killed every new year
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Undergrad Why Does the Gravity Field Exist?
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High School Become Smarter - Tips for Struggling with Trig & Physics
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High School Does a Fly Crash Into the Windshield When a Car Suddenly Stops?
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Graduate How Do Scientists Approach the Challenges of the Standard Model?
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Undergrad Parker 61 Fountain Pen: Understand Its Capillary Action
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Graduate Does the Belousov-Zhabotinsky Reaction Lead to a Steady State or Oscillations?
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3K
  • Poll Poll
Order or Entropy?
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5
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High School Is There a Way to Convert Mass into Charge?
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Undergrad Gravitational pull at the center of the Earth
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High School Color of Clouds: Dark Pink at Night, White in Morning?
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Undergrad Interesting comment about medical research vs. physics research
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Graduate What does it mean to say that two things are coupled or not decoupled ?
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High School Longitude and Latitude angle at 12M
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Undergrad Searching for Phrases: How to Avoid Keywords
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Undergrad Behavior of Aurora Australis Around A Dark Spot on Composite Image
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High School Increase FOV of Camera: Simple Tips & Tricks
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Undergrad Mad About Physics: Examining Braintwister No. 90 - The Three Hole Can
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Undergrad Calculating Flow Separation Point
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High School Noises from MRI Imaging: Sources Explained
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Graduate LHC Restart in Sept - How Long Before We Get Results?
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High School What is Mersenne's Law and its connection to Pythagoras?
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Incredible Power of Oil: Stick Diamonds to Windows!
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High School Uncovering the Truth: Is Wind Energy Really Free or Does it Have Hidden Costs?
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High School Is Magnetic Propulsion the Key to Space Travel?
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Undergrad Physics in Movies: Realism vs. Entertainment
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High School What Defines East & West if Earth Stops Rotating?
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High School Energy and Matter and Everything else
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High School Home-Made Energy: Exercise Bike for TV?
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Highest Resolution Modern Microscope - Info & Resources
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Graduate Most Mind Blowing Physics statements
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IQ of a Physicist and Other Related Fields
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High School Is flame matter or energy?
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Is Sixty Symbols Effective for Physics Outreach?
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High School How Do You Convert Mmscmd to Mmbtu?
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Undergrad What is the potential for using a conductive flame in audio technology?
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High School How to write uncertainities on different measurement
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High School Helium Inhalation: Mythbusters Video Explained
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High School Calculating Fluid Density: Beyond the Formula
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Undergrad How do you find the degree of freedom for energy
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High School David Blaine - 17 min breath hold
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Graduate What is Physical Basis of Tuning Note in Western Musical scale
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Graduate Can I call myself a physicist yet?
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High School Characteristics and properties of milk
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Undergrad Units Systems, Dimensions & Dimensional Analysis Overview
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Undergrad Half of Energy: Where Does It Go? (Solving e=mv^2)
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Video: Scientist plans Time Machine - Is this possible?
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Graduate Can we understand QM by giving up reductionism?
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12
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Why do cell phone ringtones play through television speakers?
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High School What would happen if a tube like this were placed in the earths atmosphere?
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Graduate Modern Physics, The Observer, and free-will
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